heaters that use a heat exchanger to operate. This AD requires an inspection every 150 hrs or annually, whichever comes first. You will need to use a system to track both the calendar and airframe hour limits on those types of inspections. One way to do that is to use two lines on your table.

Any recurring manufacturer Service Bulletins that you are concerned about should be entered as well, just like recurring ADs.

Another area to think about is STCs. Do any of the STCed modifications on your aircraft have special inspections or maintenance action required? These STC “Instructions for Continued Airworthiness” (ICAs) are important to keep your plane airworthy and will soon be required to be entered in your Technical Record, through an upcoming CAR amendment.

The rest of the items will come from a quick read through CAR 625 Appendix C

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the “out of phase items” list. Do you have a fixed pitch propeller? They need to be

removed and inspected every five years. Variable pitch props are generally required to be sent for overhaul every ten years.

Once you have thought about the annual inspection date, recurring ADs and Service Bulletins, STC ICAs and CAR 625 Appendix C “out of phase items” you will probably have a complete maintenance schedule. Of course you can add any other personal items that you would like to note there, too, to make it complete. Some people keep track of things like “time since engine overhaul”, not because private owners are required to overhaul at the recommended number of hours, but just to see how close the engine is getting to that figure. It is a useful information note.

The sample maintenance schedule produced here will give you a good idea how these can be customized to the individual owner’s tastes. As you can see all you have to do is compare the current airframe hours at the top and today’s date with the column below it to see if anything is now due. The last column gives the hours left until the inspection or work is due.